My rdw and lymph count is high and my mcv and mch is low. what do these results mean?

Need a workup: Lab results mean nothing in isolation, and reference ranges are set so that a few percent of healthies fall outside on either end. Given that, I wouldn't be surprised if you were getting a bit iron deficient, and that's a call for a workup -- are you bleeding from something troublesome like an ulcer or tumor? Your physician should know what to do.